JPH0926969A - Telephone book retrieval system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To house the telephone books of all over Japan in one CD-ROM by composing information stored in a storage medium by plural blocks compressed for each fixed capacity and executing the reproduction processing of the compressed block 1 storing the information corresponding to telephone number information in a compression-reproduction means. SOLUTION: In an optical disk 5, data storage areas storing data such as an AP storage area for storing a telephone number book program and an index information storage area, etc., are provided. Then, telephone numbers with the largest capacity, surnames, names, corporation names, address codes and conversion areas are compressed by an LZW method, edited in relation to the index information storage area and written in one CD-ROM. On the other hand, the compressed data are decoded by a data compression-reproduction LS. Thus, the telephone books of a Japan nationwide version is housed in one CD-ROM and high-speed retrieval is made possible.

Description

Detailed Description of the Invention

[0001]

The present invention relates to an information retrieval device,
More specifically, it relates to a telephone directory search system for inputting a telephone number and searching a contractor name and address of the telephone number from a recording medium such as an optical disk.

[0002]

2. Description of the Related Art Recently, data such as a telephone number, a contractor's address, and a name recorded in a conventional telephone directory is recorded on a CD-.
ROM (compact disc, read-only memory)
The one recorded in is released. This CD-ROM
A system for driving a mobile phone to search for a telephone number, address, name, etc. has been released, and it has come to be used very effectively in mail-order sales and the like.

[0003]

However, the information in the telephone directory is very large, for example, a CD-R of 540 MB in Japan.
OM has 3 to 6 CDs, and multiple CDs for national search
-It was necessary to have a complicated system configuration using ROM or change the CD-ROM for each region. If this can be searched with one CD-ROM disc, it is very useful without taking up space.

Although it is possible to store data in one CD-ROM disc by using the data compression technique which has been put into practical use recently, there is a problem that the retrieval speed becomes rather slow when all the data is compressed. there were.

[0005]

In order to achieve the above object, an input means for inputting telephone number information, and at least a name or a corporate name and an address corresponding to the telephone number information input by the input means. In a telephone directory search system comprising a search means for executing a search from information stored in a storage medium and an output means for outputting a search result in the search means, the information stored in the storage medium is stored in a predetermined capacity. In the compression reproduction means included in the search means, the reproduction processing of the compressed block in which the information corresponding to the telephone number information input by the input means is stored is executed.

[0006]

[Function] By the above means, the Japanese national version of the telephone directory is a C
It is possible to realize a telephone directory search system that is housed in a D-ROM and that enables high-speed search.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings as an application to a telephone number file system.

First, the appearance of this file system will be described with reference to FIG. In FIG. 2, a casing 1 contains a search device, which will be described later, a drive device for driving an optical disk, and the like, and the casing 1 is provided with a keyboard 2 and a display device 3 such as a liquid crystal. ing. The keyboard 2 can be pushed out into the housing 1 when it is not in use by using a pull-out type. Further, although not shown, two jacks are provided on the back surface of the casing 1, and the telephone 4 and a public telephone line (or extension) (not shown) are connected to circuits inside the casing 1 by these jacks.

To explain the general operation of the telephone number file system, the telephone number is recorded as data on the optical disk 5. The optical disc of the embodiment is a CD
-ROM type is used. The publicized telephone directory data can be written in ROM by a stamper in advance.

When this optical disk 5 is inserted from the insertion opening 1a provided in the housing 1 and mounted in the disk drive device, it is possible to retrieve the name and address from the telephone number.
Therefore, when the user operates the keyboard 2 to input a telephone number, data search on the optical disk 5 is performed. The retrieved data is displayed on the display device 3.

FIG. 1 is a block diagram showing an embodiment of an information retrieval system according to the present invention. 6 is a CPU (central processing unit), 7 is a ROM (read only memory), 8
Is RAM (random access memory), 9 is a disk drive device, 10 is a bus, 11 is an NCU (network control unit), 12 and 13 are jacks, 14
Is an amplifier, 15 is a speaker, 16 is a public telephone line or extension, 17 is a data compression / reproduction LSI, and the same symbols are given to the portions corresponding to FIG.

In FIG. 1, a public telephone line or extension 16 is connected to a NCU 11 via a jack 12, and a telephone 4 is connected to an NCU 11 via a jack 13.

On the other hand, on the optical disk 5, as will be described later, data such as telephone number, index information, address, family name, first name, data application program (A
A telephone directory search program for searching data such as a telephone number as P) is recorded, and each index information is accompanied by address information indicating a recording position on the optical disc 5. Further, the ROM 7 has a CPU 6
The system program for performing the initial operation of is stored.

Therefore, when the optical disk 5 is inserted into the disk drive device 9 by inserting it from the insertion slot 1a of the housing 1, the CPU 6 starts the operation in accordance with the system program in the ROM 7, initializes each part, and drives the disk drive. The device 9 is activated to read all the index information with the address information and the telephone directory search program from the optical disk 5 and write them in the RAM 8. In this embodiment, the telephone book search program for searching the data is stored in the optical disk 5, and is read out to the RAM 8 at the time of start-up to execute the program. However, by storing the telephone book search program in the ROM 7, the telephone book search program It is possible to reduce the read time and the rise time until the search becomes possible.

When the writing to the RAM 8 is completed, the CP
U6 displays a screen for prompting the rearrangement of the index information and the input of guidance information on the display device 3. Then, when the user operates the keyboard 2 to input the guidance information, the CPU 6 operates according to the telephone directory search program stored in the RAM 8 to input the guidance information and the R information.
It collates with the index information stored in AM8.

Here, data is recorded on the optical disc 5 in a specific order to be described later, and index information is also set in a manner to be described later according to this, so that it is composed of a plurality of characters. Every time one character of the guidance information is input, the address information is determined by collating with the index information stored in the RAM 8. Then, every time the address information is determined, the CPU 6 operates the disk drive device 9 to move the head to the optical disk 5
Seek to the location specified by this address information above.
In this way, each time a character is input from the keyboard 2 (that is, each time the key of the keyboard 2 is hit), the disk drive device 9 performs a seek operation, and the head records the desired data corresponding to the guidance information input position. Gradually approaching.

In this way, with the guidance information input by the keyboard 2 (that is, without waiting for the completion of the guidance information input), the disc drive device 9 performs the seek operation to the desired data of the optical disc 5, and the guidance is performed. With the completion of the input of information, the telephone number and the family name, first name, corporation name, and address code conversion table corresponding to the telephone number can be read from the optical disc 5.

The conversion table read from the optical disk 5 is written in the RAM 8 and reproduced by the data compression / reproduction LSI 17, and the name data and address data corresponding to the telephone number are read based on the reproduced conversion table. Is issued and the search is completed. Then, the search data for the input guidance information is displayed on the display device 3. When the user confirms the display information on the display device 3 and then the user operates the keyboard 2 for printing, the search information is printed via the RS-232C I / F.

Next, the storage information in the optical disk 5 in FIG. 1 will be described. Third in the optical disc 5
As shown in the figure, from the inner circumference side to the outer circumference side, an AP storage area storing a telephone number book program, an index information storage area storing index information accompanied by address information, a telephone number-a family name, a first name, and a corporation. A data storage area for storing data such as first name, address code conversion table area, actual address, first and last name, etc. is provided.

When the optical disk 5 is loaded into the disk drive device 9, the AP storage area and the index information area are read out, and the read-out information is written in the RAM 8.

A telephone number is input from the keyboard 2. Telephone numbers are classified into area codes, district codes, etc. like Tokyo 03, Osaka 06, etc. When the area code is entered, it is checked against the index information and seeks to the information area where the data is recorded. When the district code is entered, it seeks on data that is even closer. When the last number has been entered, the index information will be used to
Read the corresponding block that stores the family name, first name, corporate name, and address code conversion table. This is restored by the decoder 17 and the data of the family name, first name, corporate name, and address are read out based on this data and displayed on the display 3. The flow of this search is shown in FIG.

In FIG. 3, the index information storage area is 654 KB to 1 MB in the telephone directory throughout Japan. On the other hand, telephone number-surname, first name, corporate name, address code conversion area is about 1180MB, and last name, first name, and address data are about 2 in total.
The data structure is 00 MB, and this data structure does not fit on one disk, and it is conventionally divided into three disks.

In this embodiment, the AP storage area, the index information storage area, the family name, the first name, and the address data are stored without being compressed, and the telephone number having the largest capacity-the family name, the first name, the corporate name,
The address code conversion area is LZW (Lampel-Ziv
Compressed by the Welcb) method. When this compression method is used, the data can be compressed to about 1/3 with LossLess, resulting in 393 MB, and even the uncompressed index information and surname, first name, corporate name, and address data are less than 600 MB of the CD-ROM. CD-
It can be recorded in ROM.

However, if 1180 MB is compressed at one time and decompressed, it takes about 4 hours even in a system using a 16 MHz CPU, which is not practical.

In this embodiment, telephone number-sex, name, corporate name,
The address code and the conversion area are divided into blocks each having a size of 4 KB until compression, and are compressed in association with the index information storage area and then written in the CD-ROM. Since a system using a 16 MHz CPU for decompressing 4 KB compressed data takes about 1 second, even if other processing is performed, it takes only a few seconds, and a sufficiently practical search time can be realized.

Even if 4 KB data is compressed by the LZW method, it is about 1.3 KB on average, and 1180 MB becomes about 400 MB. Even if index information, sex, name, corporation name and address data are combined, 600 MB for one CD-ROM. Next to
It can be recorded on one CD-ROM. If the capacity of the block before compression is reduced, the compression rate becomes worse, and if it is increased, the decompression time becomes long. Phone Number-Gender, First Name, Corporate Name,
By compressing the address code conversion table in units of 4 KB, the telephone directory information can be stored in one CD-ROM, and the search time can be reduced to several seconds.

Decoding of the compressed data is performed by the data compression / reproduction LSI 17. In this embodiment, the LSI is used in terms of speed, but if the CPU 6 has a high speed, it can be decoded by software.

The embodiment of the present invention has been described above as a search system for a telephone number, an address, and a name. However, the present invention is not limited to this embodiment.

Further, although the optical disk is used as the storage medium in the above embodiment, it is obvious that other disk-shaped recording medium such as a magnetic disk or a semiconductor disk using a semiconductor chip may be used.

Further, in the present embodiment, only the telephone number-sex, first name, corporate name, and address code conversion table is compressed, but other index information and each data area of family name, first name, address and corporate are compressed. Good.

[0031]

As described above, the Japanese version of the telephone directory is stored in one CD-ROM, and high-speed retrieval is possible. Therefore, the name and address can be searched at high speed by asking the customer only the telephone number at the store or the like, and the system for issuing slips based on this can be applied.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an information search system according to the present invention.

FIG. 2 is an outer peripheral view of the information search system shown in FIG.

FIG. 3 is a specific example of a recording area of the optical disc in FIG.

FIG. 4 is a flowchart showing a search operation of the embodiment shown in FIG.

[Explanation of symbols]

 1 information retrieval system 2 keyboard 3 display device 4 telephone 5 optical disk 6 CPU 8 RAM 9 disk drive device

Claims (3)

[Claims] 1. An input unit for inputting telephone number information, and a search for executing at least a name or a corporate name and an address corresponding to the telephone number information input by the input unit from information stored in a storage medium. In the telephone directory search system, which comprises a means and an output means for outputting a search result in the search means, the information stored in the storage medium includes a plurality of blocks compressed at a certain capacity and is included in the search means. A telephone directory search system, characterized in that the compression reproduction means executes reproduction processing of a compressed block in which information corresponding to the telephone number information input by the input means is stored. 2. The telephone directory search system according to claim 1, wherein the size of the block compressed for each fixed capacity before compression is about 4 KB. 3. The telephone book search system according to claim 1, wherein the information compressed for each fixed capacity is a conversion table for linking a telephone number with a name or corporate name and address data. Book search system.